Perforin-deficient mice have been generated by homologous recombination to determine whether the effects of CD8+ cytolytic T cells and natural killer cells are mediated by pore formation involving perforin. These mice are viable and fertile and have normal numbers of CD8+ T cells and natural killer cells which do not lyse virus-infected or allogeneic fibroblasts or natural killer target cells in vitro. The mice fail to clear lymphocytic choriomeningitis virus and they eliminate fibrosarcoma tumour cells with reduced efficiency. Perforin is therefore a key effector molecule for T-cell- and natural killer-cell-mediated cytolysis.
Pubmed ID: 8164737 RIS Download
Mesh terms: Amino Acid Sequence | Animals | Antigens, CD8 | Base Sequence | Cell Line | Cytotoxicity, Immunologic | DNA Primers | Female | Fibrosarcoma | Isoantigens | Killer Cells, Natural | Lymphocyte Activation | Lymphocytic Choriomeningitis | Male | Membrane Glycoproteins | Mice | Mice, Inbred C57BL | Mice, Inbred DBA | Molecular Sequence Data | Perforin | Pore Forming Cytotoxic Proteins | Recombination, Genetic | Stem Cells | T-Lymphocytes, Cytotoxic
Publication data is provided by the National Library of Medicine ® and PubMed ®. Data is retrieved from PubMed ® on a weekly schedule. For terms and conditions see the National Library of Medicine Terms and Conditions.